Device for tightening and securing round-wire box-strapping



1. SQGANS.

DEVICEFOR TlGHTENl-NG AND SECURING ROUND W IRE BOX STRAPPING.

APPLICATION FILED 050.3, 1919.

' 1,400,04 Patented-Dec. 13, 1921.

(J-woe for 50 sired tension.

of .the bar, radially around lts-lineal center.

UNITED STATES PATENT ,OFFICE.

LEONARD S. GAINS, OF NEW YORK, N.

DEVICE FOR TIGHTENING AND SECURING ROUND-WIRE BOX-STRAPPING.

To all whom it may concern.

Be it known that I, LEONARD S. GANs, a. citizen of the United States, and a resident of the city, county, and State of New York, have invented certaln new and useful Improvements in Devices for Tightening and Securing Round-Wire Box-Strapping, of which the following is a specification.

My invention relates to that class of device for the above purpose in which a. supporting frame, preferably shaped like a horse-shoe, is employed tohold a tightening and twlsting clutch lnproper relation to the box or other package around which the wlre strapping is to be tightened and secured.

ments by which those operations are performed.

To this end, I dispense with the gripping jaws heretofore employed for holding the two loose ends of the wire strapping during the tightening and securing operations. In-

stead of such gripping jaws or other relatlvelyt-movable devices, I use a simple steel plate or bar wlth two or more notches 111 which the loose ends of ,the strapping are laid before their free ends are bent back-' 85 various parts needed to create a pair of gripping jaws or other type of gripping .device.

My notched plate or bar acts like a strong, durable pin, impossible to getout of order 40 and re'quirlng no adjustment whatever.

Over" this the two-free ends of the wire strapping are looped at opposite sides of the lineal center of the bar. It will be readily understood that when the wires are thus looped around the bar, a simple draw ing 'IIlOtlOIlwhich increases the space be tween the bar and the box against which the tightening and securing device presses will gradually tighten the wires to the de- And that a simple. turning will twist the wires around each other and thus secure their'loose ends in the usual manner. I

One object of my 'irvention is therefore to provide simple and strong means forim- Specification of Letters Patent."

Patented Dec. .13, 1921.

Application filed December 3, 1919. Serial No. 342,101.

parting the twodesired motions of drawing and turning.

' To this end my invention consists broadly in a. revol'uble device -provided with a notched plate or bar, the rotation of which device in one direction moves the said notched plate or bar-away .from the box, while the rotation ofsaid device in the opposite direction, throws in a clutch and causes the notched plate or bar, to rotate and .thus twist the wires together, and simul-' taneously to approach the box sufficiently to neutralize the additional strain put upon the wire by said twisting.

Heretofore, so fara's. I am aware, devices of this character have either required two or more handles to impart the different motions to the tightening and securing device, whereas, I employ a single handle for the entire operation, or have required a spring engagement of the clutch and two or more differently rotating parts, so'that the handle,

always turnsin the same direction; whereas I provide but a single rotatable part to perform both operations.

()ne form'of my improved device is shown in the accompanying drawings in which- Figure 1 may be regarded as av top plan.

Fig. 2, is a vertical section, on line 2-2, of Fig. 1, showing the tool applied to the corner of abox around which the wire strapping is to be secured.

Fig. 3, is a cross section of line 33 of Fig. 1.

lFig. 4, is an enlarged detail of the notched p ate. i

Same letters indicate similar parts in the different figures.

A is the supporting frame, adapted to hold the rotatable tightening and securing device" B. The" frame is provided with flanges a, a adapted to rest against the side of a box as shown in Fig. 2, and serve as a substantial brace for the frame when in operation. The ,frame is provided with an aperture 6, internally screw-threaded th'rough'which the externally screw-threaded shank C, is moved inwardly or outwardly by the handle D connected thereto by, a

in o.

Through this shank, runs the stem E at the upper end of which is a collar F, fastened thereto in any suitable manner as by pin p. At the other end of the stem, is attached a cylindrical block G, havin a shoul- H, as shown in Fig. 4. In the'notches, h, h, the wires w, w, are laid; their ends bent over as shown in Fig. 4. This cylinder block is secured by a pin 71, or otherwise, to the stem E.

Between the collar F, and the hub of the handle D, is a ratchet J, which is attached to and integral with the hub of said handle. It will be readily understood, that when the handle and ratchet revolve in a direction to bring the vertical face of the teeth against the pin j, the collar will be turned by the rotation of the ratchet. When the ratchet turns the other way the pin j slips up the inclined face of the teeth and falls into the next tooth,thus leaving the collar unaffected by the turning of the handle and ratchet.

Near the lower or inner end of the screwthreaded shank C, is a second collar, K, at the outer projection of which is the guide and stop pin Z, slidably mounted in a lug on the frame A. Inside this collar is a ratchet M, (Fig. 3) on the stem E, which engages a spring-controlled pin, m, set in a recess of said collar. This pin and ratchet connection is an important aid in permitting and preventing turning of the cylinder G as required during the various operations of the device.

The operation of the device is briefly as follows i y A length of round wire strapping is put around the box or packageto be strapped. Each end of the strap-length is then bent asmuch as required, somewhat as shown in Fig. 4, and looped over the notched plate or bar, H, so as to lie in one of the notches. The handle D is then turned in the direction which presents the inclined faces of the teeth of ratchet J ,to the pin 7'. The effect of this is to draw-the notched bar orplate H away from the box, thus tightening the wires. When the wires are sufficiently tightened, the handle is turned in the opposite direction. This presents the vertical face of the nearest tooth of ratchet J to the pin j, and causes the clutch F, stem E, cylinder G and the notched plate H to turn around the axis of stem E. The wires being looped at opposite sides of this axis will naturally twist upon each other at every revolution of the stem. Meanwhile the shank C, also rotating in the same direction as the stem, will move toward the box and neutralize the strain put upon the wires by their twisting.

The many uses and advantages of my improved device will, .I think be understood without further description.

I claim A device for tightening and securing .round wire box-strapping which comprises a suitable frame, a revoluble device mounted therein, and provided with a notched member over wlnch the wires are looped,

and means for rotating said device in one direction to move said notched member away from the box around which the wires have been put, thus tightening said wires, and means for rotating said device in the opposite direction to cause said notched member to rotate, thus twisting said wires around each other while said notched member approaches said box and neutralizes the strain caused by such twisting of said wires.

v LEONARD S. GANS.

Witnesses;

A. F. KUEHNE, C. V. SUITS. 

